tox.ini: add a getmagic.sh to use Debian version of python-magic

Passerelle is developped on the Debian python-magic package which is extracted
from libmagic but does not exist on pypi, it makes testing those part of
passerelle from a virtualenv a bit difficult.

getmagic.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+# Get venv site-packages path
+DSTDIR=`python -c 'from distutils.sysconfig import get_python_lib; print(get_python_lib())'`
+
+# Get not venv site-packages path
+# Remove first path (assuming that is the venv path)
+NONPATH=`echo $PATH | sed 's/^[^:]*://'`
+SRCDIR=`PATH=$NONPATH python -c 'from distutils.sysconfig import get_python_lib; print(get_python_lib())'`
+
+# Clean up
+rm -f $DSTDIR/magic.py
+
+# Link
+ln -sv $SRCDIR/magic.py $DSTDIR
+
+exit 0
+

tox.ini

@@ -3,12 +3,9 @@ envlist = django17,django18
 
 [testenv]
 usedevelop = True
-sitepackages = True
 setenv =
    DJANGO_SETTINGS_MODULE=passerelle.settings
    PASSERELLE_SETTINGS_FILE=tests/settings.py
-commands =
-  py.test --junitxml=test_results.xml --cov-report xml --cov=passerelle/ --cov-config .coveragerc tests/
 deps =
   django17: django>1.7,<1.8
   django18: django>=1.8,<1.9
@@ -27,3 +24,6 @@ deps =
   astroid==1.3.2
   django-jsonresponse
   gadjo
+commands =
+  ./getmagic.sh
+  py.test --junitxml=test_results.xml --cov-report xml --cov=passerelle/ --cov-config .coveragerc tests/